Question

No rainfall in the area. The rate of photosynthesis

• A. Increases
• B. Decreases
• C. Remains unchanged
• D. Fluctuates

Answer 1

The correct option is B Decreases

Photosynthesis is carried out by green plants to synthesize organic compounds. Raw materials of photosynthesis are water which plants absorb from soil and carbon dioxide which plants get from the atmosphere. During photosynthesis light energy in sunlight is converted into chemical energy present in bonds of organic compounds and oxygen is released as a by-product. If there is less rainfall, the rate of photosynthesis will decrease because water is one of the substrates used in the process of photosynthesis.

So, the correct answer is option B.